Mobile Sempron SI-42 vs i7-7820HQ

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Aggregate performance score

Core i7-7820HQ
2017
4 cores / 8 threads, 45 Watt
4.51
+2048%
Mobile Sempron SI-42
2009
1 core / 1 thread, 25 Watt
0.21

Core i7-7820HQ outperforms Mobile Sempron SI-42 by a whopping 2048% based on our aggregate benchmark results.

Primary details

Comparing Core i7-7820HQ and Mobile Sempron SI-42 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking13183219
Place by popularitynot in top-100not in top-100
Market segmentLaptopLaptop
SeriesIntel Core i7AMD Mobile Sempron
Power efficiency9.480.79
Architecture codenameKaby Lake-H (2017)Sable (2008−2009)
Release date3 January 2017 (7 years ago)1 September 2009 (15 years ago)
Launch price (MSRP)$378no data

Detailed specifications

Core i7-7820HQ and Mobile Sempron SI-42 basic parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters indirectly say of CPU speed, though for more precise assessment you have to consider their test results.

Physical cores4 (Quad-Core)1 (Single-Core)
Threads81
Base clock speed2.9 GHzno data
Boost clock speed3.9 GHz2.1 GHz
Bus typeDMI 3.0no data
Bus rate8 GT/s1800 MHz
Multiplier29no data
L1 cache64K (per core)128 KB
L2 cache256K (per core)512 KB
L3 cache8 MB (shared)no data
Chip lithography14 nm65 nm
Die size126 mm2no data
Maximum core temperature100 °C100 °C
64 bit support++
Windows 11 compatibility--

Compatibility

Information on Core i7-7820HQ and Mobile Sempron SI-42 compatibility with other computer components: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.

Number of CPUs in a configuration1 (Uniprocessor)no data
SocketFCBGA1440S1g2
Power consumption (TDP)45 Watt25 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-7820HQ and Mobile Sempron SI-42. You'll probably need this information if you require some particular technology.

Instruction set extensionsIntel® SSE4.1, Intel® SSE4.2, Intel® AVX265 nm, 1.075 - 1.125
AES-NI+-
AVX+-
vPro+no data
Enhanced SpeedStep (EIST)+no data
Speed Shift+no data
My WiFi+no data
Turbo Boost Technology2.0no data
Hyper-Threading Technology+no data
TSX+-
Idle States+no data
Thermal Monitoring+-
Flex Memory Access+no data
SIPP+-
Smart Response+no data

Security technologies

Core i7-7820HQ and Mobile Sempron SI-42 technologies aimed at improving security, for example, by protecting against hacks.

TXT+no data
EDB+no data
Secure Key+no data
MPX+-
Identity Protection+-
SGXYes with Intel® MEno data
OS Guard+no data

Virtualization technologies

Virtual machine speed-up technologies supported by Core i7-7820HQ and Mobile Sempron SI-42 are enumerated here.

AMD-V+-
VT-d+no data
VT-x+no data
EPT+no data

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i7-7820HQ and Mobile Sempron SI-42. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR4no data
Maximum memory size64 GBno data
Max memory channels2no data
Maximum memory bandwidth38.397 GB/sno data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardIntel HD Graphics 630no data
Max video memory64 GBno data
Quick Sync Video+-
Clear Video+no data
Clear Video HD+no data
Graphics max frequency1.1 GHzno data
InTru 3D+no data

Graphics interfaces

Available interfaces and connections of Core i7-7820HQ and Mobile Sempron SI-42 integrated GPUs.

Number of displays supported3no data
eDP+no data
DisplayPort+-
HDMI+-
DVI+no data

Graphics image quality

Maximum display resolutions supported by Core i7-7820HQ and Mobile Sempron SI-42 integrated GPUs, including resolutions over different interfaces.

4K resolution support+no data
Max resolution over HDMI 1.44096x2304@30Hzno data
Max resolution over eDP4096x2304@60Hzno data
Max resolution over DisplayPort4096x2304@60Hzno data
Max resolution over VGAN/Ano data

Graphics API support

APIs supported by Core i7-7820HQ and Mobile Sempron SI-42 integrated GPUs, sometimes API versions are included.

DirectX12no data
OpenGL4.5no data

Peripherals

Specifications and connection of peripherals supported by Core i7-7820HQ and Mobile Sempron SI-42.

PCIe version3.0no data
PCI Express lanes16no data

Synthetic benchmark performance

Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.


Combined synthetic benchmark score

This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.

i7-7820HQ 4.51
+2048%
Mobile Sempron SI-42 0.21

3DMark06 CPU

3DMark06 is a discontinued DirectX 9 benchmark suite from Futuremark. Its CPU part contains two scenarios, one dedicated to artificial intelligence pathfinding, another to game physics using PhysX package.

i7-7820HQ 7679
+876%
Mobile Sempron SI-42 787

wPrime 32

wPrime 32M is a math multi-thread processor test, which calculates square roots of first 32 million integer numbers. Its result is measured in seconds, so that the less is benchmark result, the faster the processor.

i7-7820HQ 9.38
+710%
Mobile Sempron SI-42 76

Gaming performance

Pros & cons summary


Performance score 4.51 0.21
Recency 3 January 2017 1 September 2009
Physical cores 4 1
Threads 8 1
Chip lithography 14 nm 65 nm
Power consumption (TDP) 45 Watt 25 Watt

i7-7820HQ has a 2047.6% higher aggregate performance score, an age advantage of 7 years, 300% more physical cores and 700% more threads, and a 364.3% more advanced lithography process.

Mobile Sempron SI-42, on the other hand, has 80% lower power consumption.

The Core i7-7820HQ is our recommended choice as it beats the Mobile Sempron SI-42 in performance tests.


Should you still have questions on choice between Core i7-7820HQ and Mobile Sempron SI-42, ask them in Comments section, and we shall answer.

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Intel Core i7-7820HQ
Core i7-7820HQ
AMD Mobile Sempron SI-42
Mobile Sempron SI-42

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Community ratings

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Questions & comments

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